Commit 47c80de6 authored by Vasanthakumar Thiagarajan's avatar Vasanthakumar Thiagarajan Committed by John W. Linville

ath9k_hw: Find the maximum number of chains that hw supports

Have it in ah->caps. This will be used during various
calibrations.
Signed-off-by: default avatarVasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 8060e169
......@@ -1764,7 +1764,7 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
u16 capField = 0, eeval;
u8 ant_div_ctl1;
u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
regulatory->current_rd = eeval;
......@@ -1976,6 +1976,18 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
pCap->pcie_lcr_offset = 0x80;
}
tx_chainmask = pCap->tx_chainmask;
rx_chainmask = pCap->rx_chainmask;
while (tx_chainmask || rx_chainmask) {
if (tx_chainmask & BIT(0))
pCap->max_txchains++;
if (rx_chainmask & BIT(0))
pCap->max_rxchains++;
tx_chainmask >>= 1;
rx_chainmask >>= 1;
}
return 0;
}
......
......@@ -199,6 +199,8 @@ struct ath9k_hw_capabilities {
u16 rts_aggr_limit;
u8 tx_chainmask;
u8 rx_chainmask;
u8 max_txchains;
u8 max_rxchains;
u16 tx_triglevel_max;
u16 reg_cap;
u8 num_gpio_pins;
......
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